I'm a bit wary of the wording.
Spencer said that the game will still be available on all those platforms, but what about the future updates? Are those not coming? Or will we have a situation where "update 1.x will be available first on Windows and Xbox One™" situation?
There's split precedents.
On one hand, we have the often brought up Rare.
Rare released GBC/GBA/DS games because,
at the time, Microsoft had no competing handhelds, so it was a viable product to consider. You wouldn't see a Wii version of Viva Pinata, but a DS version made sense. However, now with a big push for Windows Phone and Surfaces, that might be seen as counter-productive. But ultimately, Rare is an over-rated company that's produced nothing but mediocre garbage since MS bought them
On
another hand we have Skype.
Skype is on every god damn platform known to man and is kept that way. Because it's a money-maker. And also a life-line for many people.
But Microsoft fucked that up by merging it with MSN Messenger and doing
very little to improve Skype since they bought it. It's completely stagnated.
On the
third hand is Microsoft Game Studios with Wordament.
The Wordament team, now releasing their
second game, has put out products for iOS, Android and Windows Phones, in addition to Windows RT/8. And you can even get Xbox achievements by playing on those platforms. It's truly amazing and a clear shift from everything else the company has done.
So which camp will Mojang fall into? Staying exclusive where MS competes and turning the company into shit? Or keeping the multi-platform dream alive, but still fucking it up? Or will it be like Wordament, and actually seem like a weirdly polished product?
Just 80 more million units at 30$ profit to get the money back. They will get their money back by 2015, sure.
Sure, if they pay their employees zero dollars until then.